CSEMP assessment of CB138 in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 137.05 | 138.44 | -65.53 | 131.05 | | | |
| linear | 2 | 138.35 | 141.02 | -65.18 | 130.35 | 0.700 | 1 | 0.4028 |
| smooth (df = 2) | 3 | 139.67 | 144.21 | -64.83 | 129.67 | 0.686 | 1 | 0.4076 |
| smooth (df = 3) | 4 | 139.37 | 146.57 | -63.68 | 127.37 | 2.298 | 1 | 0.1296 |
| smooth (df = 4) | 5 | 138.79 | 149.68 | -62.39 | 124.79 | 2.581 | 1 | 0.1082 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | 0.3894 | 0.6346 | 0.24519 | 0.28886 | 0.849 | 0.4103 |
| last 20 years | 1999 | 2017 | 0.3894 | 0.6346 | 0.24519 | 0.28886 | 0.849 | 0.4103 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 1.886 | 0.150 | -2.5317 | 0.1558 | -16.254 | 1.0000 |
| EAC | 1.886 | 7.900 | 1.4323 | 0.1558 | 9.195 | <0.0001 |
Raw data with supporting information
__sdmn_cb138_au.jpg "Raw data with supporting information for assessment of CB138 in sediment at inner (Firth of Clyde)")
Raw data with assessment
__sdmn_cb138_da.jpg "Raw data with assessment of CB138 in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_cb138_as.jpg "Assessment plot for CB138 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB138 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB138 in sediment at inner (Firth of Clyde)")
Related pages
